Radiator wrench



my s, 1924.

J. ROBERTS RADIATOR WRENCH Filed June 19, 1923 M W/ f Patented July 8,1924.

" 'L j* S;

JOHN ROBERTS, OF lB'OIlIlhlTIur'V GREEN,` KENTUCKY.

RADIATQR WRENCH.

Applicationy lediunelt), 19,23. SeriaLNo. 646,344. 1v

To all 'wlw/Writ may 00mm-1.17m y Be it knownthat I, VJol-IN ROBERTS,a-citizen of the United States, residing at] Bowling Green, in thecounty of Warren and State of Kentucky, have invented certain new andvuseful Improvements in Radiator lVrenches, of which the following is aspecification.

in carrying out the present invention it is my purpose to provide aninvention that is specilically adapted for use in the assembling ordissembling of the radiators of house heating systems.

The primary object of this invention re.- sides in the provision of sucha wrench that is extremely simple in construction and that includes ameans whereby the usual locking bushings between the sections of theradiators may be removed or applied.

A further object is to provide such a tool that may be used in a simpleand expeditious manner by eve-n those unskilled in the art.

The nature and advantages of the invention will be better understoodwhen the following detailed description is read in connection with theaccompanying drawings, the invention residing in the construction,combination, and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals ofreference indicate similar parts in the several views, and whereinFigure 1 is a detailed sectional view through the lower end of theconventional form of radiator showing in side elevation, my improvedwrench as engaged therethrough for the removal of the interlockingbushings.

Figures 2 and 3 are detailed cross sections through different points ofmy improved wrench for disclosing more clearly certain of the elementsincluded therein..

Figure l is an elevation of che end of the wrench formed with a bushingengaging head, and i Figure 5 is a side elevation of one of the bushingsthat is now used in coupling together the different sections of theradiator.

Now having reference to the drawing, and particularly to Figure l, 5designates the usual hollow sections of a steam or hot water radiator,the lower ends thereof being provided with alined openings in thetopposite side walls that are formed with screw threads extending inopposite directions, that is, the threads of one opening being lefthand, while they threads of the other opening'are right hand.Y As 'shownin Figure 1,k these sectionsr are adapted to have their lower endsinclose contact with each other and are joined together with hollowbushings 6, that are formed with external right and left hand screwthreads shown in Figure 5, whereby a turning movement of thesebushingsin one direction will bring the sections 5 in close relation toeach other and a reversal of movement will separate the same. .Thesebushings 6 are interiorly formed with longitudinally extending spacedbosses or ridges 7.

My invention per se embodies the provision of a relatively elongated bar8, that is preferably square in cross section, and is formed at one endwith a circular head 9 upon the periphery of which are longitudinallyextending spaced grooves or channels 10 for the reception of said bosses7 of the bushings 6 when the tool is in operation, and it is desired toremove or insert said bushings.

Slidably upon the rod 8 is an abutmentV collar 11 that is formed at itsside adjacent the head 9 with a bearingy collar 12 that is of coursealso slidable upon the rod, whereby, in the operation of my tool thesaid collars 11 and 12 may be so positioned upon the rod as to engagethe bearing collar 12 within the opening Aof the outermost radiatorsection 5 for thereby providing a guide during the removal or insertionof any one of the bushings 6. The collar 11 has close contact with theadjacent radiator section for thereby limiting the movement of the rodwithin the radiator sections. As a means for maintaining these collarsin adjusted positions upon said rod a set screw 13 is provided.

Keyed upon the rod 8 at a point adjacent the end thereof opposite fromthe end that carries the head 9 is a pair of spaced ratchet wheels 14;,the teeth of which extend in opposite directions, and freely rotatableupon said rod 8 between the ratchet wheels 14 is a hand lever 15 thatcarries upon opposite sides thereof pivoted dogs 16, which also extendin opposite directions. It is of course apparent that either one ofthese dogs may be engaged with its respective ratchet wheel whereby arotation of the rod 8 in opposite directions may be had for the removalor insertion of anyone of the radiator bushings 6.

In View,` of the above description when considered in connection with ,nthe accompanying drawing, the operation andl advantages of a tool ofthis character can be readily appreciated by those skilled in the art,and even though I have herein 'set forth the most practical embodimentof the presenty invention, it is nevertheless to be understood thatminor changes may be ymade therein, withoutl departing from the spiritand scope of the invention as claimed.

Having thus described vthe invention, what I claim as new, and desire tosecure by Letters-Patent, is:v

In a tool for removing the securing bushingsbetween radiator sections,wherein said bushings are formed with longitudinally eX- tending bosses,a rod adapted for projecting through said bushings, a head formed upon.one end of said rod and formed with longitudinal channels for thereception of said bushing bosses, means for rotating said rod inopposite directions for the insertion or removal of the bushing, andmeans for limiting the inward movement of the rod with respect to theradiator sections, said means being adjustable.

v In testimony whereof I aliiX my signature. JOHN ROBERTS.

